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'99 318/ 5.2 pinging #754230
November 18th 2019 9:27 am
November 18th 2019 9:27 am
Joined: Aug 2019
Posts: 14
NW Louisiana
Excoastie Offline OP
stranger
Excoastie  Offline OP
stranger
Joined: Aug 2019
Posts: 14
NW Louisiana
Good morning all:

I recently did a tune-up on my '99; plugs, wires, cap, rotor, PVC, and air filter were all replaced.
All plugs were manually gapped to 0.040, firing order has been double-checked, cap and rotor are seated properly.

With a bit over 75K on the odometer, I think this was the first time anything has been done to the engine; the plug wires still had the wire loom on them, and the plugs were so bad I'm not sure how the van was even running at all, much less as well as it did. Air filter was almost completely clogged.

I am experiencing "pinging" under moderate to heavy acceleration.
I have been running 89 octane gas, but all I can find around here has the 10% ethanol in it, could the pinging be a result of the octane?

Are there any additives that could be added such as seafoam or Marvel Mystery Oil?


Exco


I know a little bit about a lot of things, but there are only a few things of which I know a lot.
Re: '99 318/ 5.2 pinging [Re: Excoastie] #754656
December 04th 2019 10:53 pm
December 04th 2019 10:53 pm
Joined: Feb 2018
Posts: 102
Seattle, Washington, USA
RichardB Offline
member
RichardB  Offline
member
Joined: Feb 2018
Posts: 102
Seattle, Washington, USA
I'd check your engine timing first. It's very possible to bump a distributor and put timing off by a little bit. Which will cause pinging.

- Rich


1991 Dodge B250 Zephyr Conversion. "Bi-frost" 74,000-ish original miles and counting.
- 318TBI; has headwork and other bolt on upgrades. Runs strong and smooth!
- Powertrax locker
- 3" aluminum radiator.
- Rear air springs, rebuilt suspension, steering stabilizer.
Re: '99 318/ 5.2 pinging [Re: Excoastie] #758419
March 27th 2020 6:16 am
March 27th 2020 6:16 am
Joined: Aug 2005
Posts: 20,661
Brooklyn Park, Maryland, USA
N
NateB Offline
Supreme Master
NateB  Offline
Supreme Master
N
Joined: Aug 2005
Posts: 20,661
Brooklyn Park, Maryland, USA
You may want to move this post to the Dodge section, however in '99 all timing was controlled by the PCM. That being said it's still possible the distributor may have been moved during the van's lifetime. There is a procedure to get it back to where it's supposed to be (not with a timing light) but it escapes me.

Also the Magnum 5.2/5.9 were known to blow the gasket on the bottom of the intake plenum, this can cause an internal vacuum leak and may cause pinging as well.


Nate Breece
--------------
2008 Dodge Caravan
1993 Chevy G20

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